Periodontitis is a chronic inflammatory disease of the tooth supporting structures induced by a dysbiosis in the oral and subgingival microenvironment of susceptible patients. The long-term swallowing of high doses of periodontal pathogenic microorganisms could induce a dysbiosis of the intestinal microbiota, favouring the establishment of an 'inflamed' microbiome in terms of composition and/or function. The present project is aimed at a better understanding of the etiopathogenetic correlation between periodontitis and intestinal dysbiosis, and aims to explore the hypothesis that periodontal treatment may influence the multi-omics profile on the oral-gut-systemic axis. 70 patients affected by stage III-IV periodontitis will be recruited, and treated by means of full-mouth scaling and root planing. Salivary, subgingival plaque, plasma and stool samples, together with a complete periodontal charting and a food diary will be collected and compared at baseline and after treatment. Age, gender and BMI-matched healthy individuals will be recruited as controls.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
70
Subgingival instrumentation with ultrasonic devices and curettes of all periodontal pockets; periodontal surgery if needed (residual probing pocket depths ≥ 6 mm).
CIR Dental School
Turin, Italy
RECRUITINGChanges in gut microbial profile measured in stool samples
Taxonomic variation of gut bacteria concentration after treatment assessed through shotgun metagenomics
Time frame: Baseline and 90 days
Changes in oral microbial profile measured in saliva samples
Taxonomic variation of salivary bacteria concentration after treatment assessed through shotgun metagenomics
Time frame: Baseline and 90 days
Changes in oral microbial profile measured in subgingival plaque samples
Taxonomic variation of subgingival bacteria concentration after treatment assessed through shotgun metagenomics
Time frame: Baseline and 90 days
Changes in oral-gut metabolome measured in stool samples
Untargeted metabolic variation of oral-gut environment after treatment
Time frame: Baseline and 90 days
Changes in oral-gut miRNAome measured in stool samples
miRNA variation of oral-gut environment after treatment
Time frame: Baseline and 90 days
Metabolic plasma changes
Concentration of IL-1β, IL-6, IL-10, TNF-α, INF-γ, glucose, and cortisol released in plasma
Time frame: Baseline and 90 days
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